A professional who tends machine that winds strands of yarn from bobbins, cakes, pirns, and other yarn packages into packages specified for further processing, shipment, or storage. Responsibilities include:

• Places supply packages on spindles or holders.
• Threads ends of yarn from each package through guides and tension device and attaches them to takeup package.
• Moves lever, depresses pedal, or flips switch to start machine.
• Observes winding units to detect breaks in yarn and ties broken ends by hand or with knotter.
• Stops machine or winding unit and doffs packages.
• Inspects yarn for defects.
• Reports malfunction of machine to machine fixer.
• May weigh yarn package or keep production records.
• May tend machine that winds yarn through emulsion-filled trough or against paraffin disk to soften or strengthen yarn.
• May be designated according to package wound or supply package used as bobbin winder; cake winder; or according to material wound as worsted winder.
• When winding continuous filament yarn to or from packages used in throwing processes, is known as redraw operator.
• When rewinding tangled or short lengths of yarn, is known as salvage winder.
• Important variables may be indicated by trade names or machines used.
• May be designated brass-bobbin winder; cone spooler; cone winder; cop winder; muff winder; piece hand; pirn winder; quill winder; spool winder; tailing-machine operator; tube winder; twine winder.